Ignore .git folder in docker img. Use rotating file logger.

main.go

@@ -7,6 +7,7 @@ import (
 	"github.com/gin-gonic/gin"
 	_ "github.com/gorilla/sessions"
 	"github.com/sirupsen/logrus"
+	"gopkg.in/natefinch/lumberjack.v2"
 	"html/template"
 	"io"
 	"os"
@@ -16,11 +17,14 @@ import (
 )
 
 func init() {
-	f, err := os.OpenFile("isc_rest.log", os.O_RDWR|os.O_APPEND|os.O_CREATE, 0660)
-	if err != nil {
-		utils.Logger.Fatalf("[MAIN] Error opening log file: %v", err)
+	fileLogger := &lumberjack.Logger{
+		Filename:   "isc_rest.log",
+		MaxSize:    50, // megabytes
+		MaxBackups: 3,
+		MaxAge:     28, //days
+		Compress:   true,
 	}
-	ginWriter := io.MultiWriter(f, os.Stdout)
+	ginWriter := io.MultiWriter(fileLogger, os.Stdout)
 	logger := logrus.New()
 	logger.SetOutput(ginWriter)
 	logger.SetFormatter(&logrus.TextFormatter{
@@ -29,6 +33,7 @@ func init() {
 	})
 	utils.Logger = logger
 
+	var err error
 	utils.MainPageTemplates, err = template.ParseFiles(
 		"./templates/index.html",
 		"./templates/components/home_clan_bar.html",